{"type": "object", "properties": {"CONTRACTYEAR": {"type": "integer", "examples": ["2026"], "minimum": 0, "maximum": 65535, "description": "Billing year\nWARNING: This may not match the year of `SETTLMENDATE`. Billing years may be misaligned near the year start/end. e.g. `SETTLEMENTDATE` `2025/12/28 00:00:00` has `CONTRACTYEAR` of 2026\n"}, "REGIONID": {"type": "string", "enum": ["QLD1", "VIC1", "TAS1", "NSW1", "SA1", "SNOWY1"], "description": "Region of emissions.\nWARNING: Unlike most tables with a region column, this may include `NEM`, which is the sum of all other regions for that day."}, "SETTLEMENTDATE": {"type": "string", "examples": ["2026/01/20 00:05:00"], "format": "date-time", "description": "Date of emissions.\nWARNING: Despite what the name suggests, this is a datetime, not a date."}, "WEEKNO": {"type": "integer", "examples": ["1", "52", "53"], "minimum": 0, "maximum": 255, "description": "Billing week\nWARNING: There may be more than 52 billing weeks in a year, depending on which day of the week the year starts on.\nWARNING: There may be 53 weeks in a year, depending on how weeks align to the year start/end."}, "CO2E_INTENSITY_INDEX": {"type": "number", "description": "Ratio of emissions to energy (tonnes CO2e per MWh)"}, "TOTAL_EMISSIONS": {"type": "number", "description": "Ammount of emissions (CO2 equivillent, tonnes)"}, "TOTAL_SENT_OUT_ENERGY": {"type": "number", "description": "Amount of energy (MWh) generated in this region.\nWARNING: This this table is undocumented, it is unclear how transmission and distribution losses, and rooftop solar, are treated."}}, "required": ["CONTRACTYEAR", "REGIONID", "SETTLEMENTDATE", "WEEKNO", "CO2E_INTENSITY_INDEX", "TOTAL_EMISSIONS", "TOTAL_SENT_OUT_ENERGY"], "description": "This table contains contain CO2 emissions and emissions intensity information,\nper day per region.\n\nWarningLevel.WARNING: This table is missing from AEMO's documentation. The information here is my best guess from looking at the data.\n\nWarningLevel.WARNING: The data is saved in a different location to most data. It is only in [`CURRENT/CDEII`](https://www.nemweb.com.au/Reports/CURRENT/CDEII), not the monthly [MMSDM archive](https://www.nemweb.com.au/Data_Archive/Wholesale_Electricity/MMSDM/). Unlike most other data, it is an unzipped CSV, not zipped. This folder contains both the latest version (`CO2EII_SUMMARY_RESULTS.CSV`) and seemingly identical file (`https://www.nemweb.com.au/Reports/CURRENT/CDEII/CO2EII_SUMMARY_RESULTS_2026.CSV`). (`CO2EII_AVAILABLE_GENERATORS*.CSV` are a different but related table.)\n\nWarningLevel.WARNING: This table has the same metadata columns (`REPORT_NAME`=`CO2EII` and `REPORT_SUB_TYPE`=`PUBLISHING`) as another table (`CO2EII_SUMMARY_RESULTS`), which is a similarly undocumented table."}